Thanks for the input Dave. Do you by chance know a qualified machienist with knowledge of high performance diesel engines that could make any thing like this?
So to be effective, you need the block out, assemble the caps, measure, remove, grind, reinstall caps, check that everything is flat/flush, and then install the girdle? Should you have a torque plate installed up top to take any flex into account?
So this is not just a bolt on addition. Sound like you need to have a good shop local for the prep work.
Which brings me back to my main question, once the prep is done, do you know someone who might make a better product at a better price? Hint hint.